I uploaded this video to YouTube on August 7, 2017. I'm adding this video in its original MP4 format to Archive.org for archival purposes.
4D2 By Rusty Blommaert and Dale Smith (R&L Enterprises) ARCADIAN 4, no. 1 (November 10, 1981): 5,8.
4D2 is a Bally Arcade/Astrocade program written in Bally BASIC and machine language. It is a video art program that creates four color panels. As the program runs it displays short messages and plays sound effects. The two programmers concealed the messages so that they would be a surprise to anyone who typed the program into BASIC and RAN it.
4D2 was the Arcadian $100 contest winner for the November 1981 issue of the newsletter.
Here are some of the program notes by Bob Fabris, the ARCADIAN's editor, that originally accompanied the program in November 1981: "4D2 is an interesting graphics program that has a number of subtleties. [It] is a purely graphics presentation that gives you something soothing to look at and admire. While the program appears random, I am told that it is a giant loop that starts again in about three days. There is a lot of machine language code in it, and it runs in Bally BASIC only. The authors are working on an Astrovision BASIC version."
In 2011, Richard Degler, a member of the Astrocade community, contacted the programmers of 4D2. The unusual program name originates from the authors being fans of Douglas Adam's book Hitchhikers Guide to the Galaxy (just recently published in the United States in 1980). In that book, the number 42 is the "Answer to the Ultimate Question of Life, the Universe, and Everything."
I recorded about the first twenty-two minutes of the program. I faded-out the video and audio at the end of the video, but, if the program really runs in a 3-day loop, then there's a lot more to see! Load it up on your Astrocade and let it run-- get back to me when it starts to repeat!
This video was captured August 4, 2017 using a 1981-era Bally Arcade / Astrocade with RF-Out, an Ambery RFDM2 (Coax to Composite Demodulator) and the Hauppauge! HD PVR, Model 1212 (Video Recorder). The software used to edit the video was Windows 7, Hauppauge! Capture, and Adobe Premiere Elements 14.